Polyurethane molding composition, method and article

Details Polyurethane molding composition, method and article Polyurethane molding composition, method and article

1989-09-29

1991-04-23

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524872, 524873, 524875, C08L 7504, C08K 336

Patent

active

050101331

ABSTRACT:
A high pressure method of molding polyurethane articles is described. A polyurethane material is formed from a cross-linkable polymer comprising the reaction product of a polyol and polyisocyanate, said polymer containing a high activation temperature catalyst and a high surface area filler. The material is processed to a gum state suitable for high pressure molding. The material and process are particularly suitable for forming small, intricately shaped articles. Such articles are also described.

REFERENCES:
patent: 3061574 (1962-10-01), Smith
patent: 3062772 (1962-11-01), Keplinger et al.
patent: 3395108 (1968-07-01), Cobbledick et al.
patent: 3483150 (1969-12-01), Ehrlich et al.
patent: 3980606 (1976-09-01), Werner
patent: 4349640 (1982-09-01), Keeney et al.
patent: 4551498 (1985-11-01), Yeater et al.

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